Efficient Colorimetric Fluoride Anion Chemosensors With Varied Colors Based on Simple Aminobenzodifuranone Organic π-Conjugated Dyes

被引：7

作者：

Deng, Zhi Feng ^{[1
]}

Li, Rui ^{[2
]}

Geng, Jie Ting ^{[2
]}

Zheng, Meng ^{[2
]}

Li, Lei Quan ^{[1
]}

Shi, Xin ^{[1
]}

Ren, Wen Qi ^{[1
]}

Meng, Zi Yue ^{[1
]}

Ji, Zhuo Ting ^{[1
]}

Hua, Jing ^{[2
]}

机构：

[1] Shaanxi Univ Technol SNUT, Sch Mat Sci & Engn, Natl & Local Joint Engn Lab Slag Comprehens Utili, Hanzhong, Peoples R China

[2] Qingdao Univ Sci & Technol, Sch Polymer Sci & Engn, Key Lab Rubber Plast, Minist Educ, Qingdao, Shandong, Peoples R China

来源：

FRONTIERS IN CHEMISTRY | 2020年 / 8卷

关键词：

sensors; dyes; aminobenzodifuranone; fluoride anion; hydrogen bonding; detection; FLUORESCENCE; ION; IMPROVEMENT; POLYMER;

D O I：

10.3389/fchem.2020.00231

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

High selectivity and sensitivity detection of fluoride anions (F-) in an organic solution by the naked eye has always been a challenge. In this investigation, a simple compound based on aminobenzodifuranone (ABDF) was designed and synthesized. Deprotonation of the amino moiety caused by F- is responsible for a color change from dark blue to various colors (colorless, yellow, orange, and red) in different common organic solvents due to a blue shift over 200 nm in the UV/Vis spectrum. The color change is quite visible to the naked eye under ambient light. The detection limit for F- can reach a concentration of as low as 5.0 x 10(-7) M with high selectivity, even in a solution containing multiple anions.

引用

页数：6

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